书籍是通往其他生活的窗户。

Lock up your libraries if you like; but there is no gate, no lock, no bolt that you can set upon the freedom of my mind.

世界上充满了愿意的人；一些人愿意工作，其余的人愿意让他们工作。

It’s not the having, it’s the getting.

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

"We're not in the business of making computers; we're in the business of making great software."